2028TP-VRL Series User's Manual
42
System Cooling
Four fans provide cooling for the chassis. These fans circulate air through the chassis as a
means of lowering the chassis internal temperature. The system fans are easy
to change modules. There is no need to uninstall any other parts inside the system when
replacing fans, and no tools are required for installation.
Optional Fan Configurations
The model chassis is designed so that the default configuration of the system is
for each motherboard to control two fans. Each motherboard node in the chassis is connected
to the backplane through the adapter card, mounted in the motherboard node drawer. In the
event that one of the motherboard drawers is removed, then the remaining motherboard will
operate both fans.
Fan Configurations Options
Hot-Swappable Default Configuration
Fans A and B connected to backplane,
backplane connected to Node A and B by adapter card
Fans C and D connected to backplane,
backplane connected to Nodes A and B by adapter card
Changing a System Fan
Fan speed is controlled by system temperature using IPMI. If a fan fails, the remaining fans
will ramp up to full speed. Replace any failed fan at your earliest convenience with the same
type and model (the system can continue to run with a failed fan).
1. If necessary, open the chassis while the power is running to determine which fan has
failed. (Never run the server for an extended period of time with the chassis cover
open.)
2. Remove the failed fan's power cord from the backplane.
3. Lift the fan housing up and out of the chassis.
4. Push the fan up from the bottom and out of the top of the housing.
5. Place the replacement fan into the vacant space in the housing while making sure the
arrows on the top of the fan (indicating air direction) point in the same direction as the
arrows on the other fans.
6. Put the fan back into the chassis and reconnect the cable (see Figure 6-4 and Figure
6-5 for details).
7.
Confirm that the fan is working properly before replacing the chassis cover.
